A man was arrested after officers said he was watching children play in a playground with his pants unzipped.

David Lee Wright, a registered sex offender who has been incarcerated five times, was arrested Wednesday after he was found standing by a fence that separates the ALPI Lincoln Park Head Start preschool and the Lincoln Park Community Center in Fort Pierce, according to the arrest report.

When officers confronted Wright, 47, he told them he goes to the playground "every day to relax." They also said "his pants were unbuttoned and that the zipper was completely open," according to the report.

And when they searched him, they found a knife in one pocket as well as "a bag of Kool-Aid and a large quantity of paper napkins" in his possession, the report said.

"In this case somebody saw something suspicious," Sgt. Dennis McWilliams said. "They saw something that didn't fit. So they alerted 911, which is the right thing to do. We were able to respond to the scene and make an arrest, and that's how the system is supposed to work."

Wright was arrested on charges of possession of a weapon by a convicted felon, as well as loitering. He's now at the St. Lucie County Jail.

The school's director declined to discuss the incident with WPBF 25 News. But McWilliams said it was an alert school staffer who notified police.

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